BIO120H1 Chapter Notes - Chapter 1-3: Parent Material, Podzol, Loess

• School: UTSG
• Department: Biology
• Course: BIO120H1
• Professor: Thomson/ Wright

Document Summary

Part one: bio120 subject: diversification of life through adaptive evolution, driven by nat. selection impose by environ, me made of equal fraction of genetic instructions from ancestors, me unique set of instructions, me zygote harvests/organize molecules into cells, make tissues, organ systems, but get sick, accidents, die, why die, darwin + wallace: mechanism of evolutionary change = nat. selection organisms adapt to environ. Nat. select. doesn"t act directly on traits/genes in isolation: individual organisms succeed/fail, adaptive evolution of particular trait <><><> on its overall effect on fitness through all of its functions, ex: large ear jackrabbit: + precip: organisms can"t be equally adapted to diff. environ. because so many tradeoffs, ex: animal adapted to hot desert = poorly adapted to cold, wet habitat, physiological mechanisms/compensating behaviours work for certain places, global variation in climate plays role in specie range, spatial variation in climate affect organisms in parallel ways.